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Finding the Third Proportional to 2,821 and 5,825

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Solution

The third proportional to 2,821 and 5,825 is: 12,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821 : 5,825 = 5,825 : x
  2. Step 2: Convert to fraction form
    2,821/5,825 = 5,825/x
  3. Step 3: Cross multiply
    2,821x = 5,825 × 5,825
  4. Step 4: Simplify right side
    2,821x = 33,930,625
  5. Step 5: Solve for x
    x = 33,930,625/2,821
  6. Step 6: Final answer
    x = 12,027.87

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.